Adjustable display screen hanging device

ABSTRACT

An adjustable display screen hanging device has a tilting assembly and a rotating assembly. The tilting assembly has two lever sets respectively mounted on two sides of a seat and two sides of a tilting base to make the tilting pivotable relative to the seat. The rotating assembly has an inner ring, an outer ring, a rotary base mounted between the two rings and a locking cap mounted through the outer ring, the rotary base and the inner ring. The locking cap is fastened on the tilting seat with at least one fastener to that the rotary base can be rotated relative to the locking cap. With the tilting assembly and the rotating assembly, the adjustable display screen hanging device can be respectively tilted and rotated in two different planes.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a display screen hanging device, and more particularly to an adjustable display screen hanging device capable of tilting in a first plane and rotating in a second plane.

2. Description of the Related Art

Flat panel displays have become commonplace and are extensively applied in various fields lately. More and more flat panel displays are adopted in the applications ranging from regular household televisions, commercial advertisement signs, signboards in hospitals, bus terminals and train stations, and the like to serve for viewing and demonstration. Keeping abreast with the trend, diversified displays go mushrooming in the market. To adapt to the wide selection of the displays, peripherals required for mounting the display screens such as screen hanging devices, hanging arms, swivel assemblies and the like, also rapidly increase.

The technique that automatically orients the display direction according to the aligning direction of a display screen is already available. However, limited capability of tilting view angle in one plane and absence of the capability of rotating in another plane cause conventional display screen hanging devices lagging behind the development of the display screens and having to be further improved.

SUMMARY OF THE INVENTION

An objective of the present invention is to provide an adjustable display screen hanging device capable of tilting in a first plane and rotating in a second plane.

To achieve the foregoing objective, the adjustable display screen hanging device has a tilting assembly and a rotating assembly.

The tilting assembly has a seat, a tilting base and two lever sets. The seat has two opposite sides. The tilting base is pivotally mounted on the seat and has a front wall and two sidewalls. Each of the sidewalls has a pivot hole and two arced holes. The pivot hole is formed through the sidewall. The two arced holes are formed through the sidewall and have a center at the pivot hole. The lever sets are respectively and pivotally mounted on the sidewalls of the tilting base to make the tilting seat pivotable relative to the seat. Each of the lever sets has a lever, a pivot fastener and two movable fasteners. The lever is mounted on a corresponding sidewall, and has a center portion and two end portions. The pivot fastener is mounted through a center portion of the outer lever and the pivot hole of the sidewall and is connected to a corresponding one of the sides of the seat. The movable fasteners are respectively mounted through the end portions of the inner lever and the two arced holes of the sidewall, and are connected with the side of the seat.

The rotating assembly is mounted on the tilting base of the tilting assembly, and has an inner ring, a rotary base, an outer ring and a locking cap. The inner ring is mounted on the front wall of the tilting base. The rotary base is mounted on the inner ring and the tilting base, and has a through hole and a side. The through hole is formed through the rotary base to align with the inner ring. The side faces the tilting base. The outer ring is mounted on the rotary base to align with the through hole. The locking cap has an annular flange formed around and protruding from a perimeter of the locking cap and having a diameter larger than that of the through hole. One end of the locking cap facing the outer ring is mounted through the outer ring, the through hole of the rotary base and the inner ring to abut against the tilting base, and is securely connected with the tilting base with at least one fastener.

With the tilting base of the tilting assembly that is pivotally mounted on the seat by the lever sets to tilt up or down to an extent limited by the travel of the movable fasteners within the arced holes in a first plane and the rotary base of the rotating assembly that is rotated relative to the locking cap, it is feasible for the display screen mounted on the rotary base to tilt in a first plane and rotate in a second plane.

Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an adjustable display screen hanging device in accordance with the present invention;

FIG. 2 is an exploded perspective view of the adjustable display screen hanging device in FIG. 1;

FIG. 3 is a partially enlarged side view of the adjustable display screen hanging device in FIG. 1;

FIG. 4 is an enlarged side view in partial section of the adjustable display screen hanging device in FIG. 1;

FIG. 5 is an operational partial side view of the adjustable display screen hanging device in FIG. 1;

FIG. 6 is another operational partial side view of the adjustable display screen hanging device in FIG. 1;

FIG. 7 is an operational enlarged front view of the adjustable display screen hanging device in FIG. 1;

FIG. 8 is another operational enlarged front view of the adjustable display screen hanging device in FIG. 1; and

FIG. 9 is a perspective view of a display screen assembled on the adjustable display screen hanging device in FIG. 1.

DETAILED DESCRIPTION OF THE INVENTION

With reference to FIGS. 1 to 3, an adjustable display screen hanging device in accordance with the present invention has a tilting assembly 10 and a rotating assembly 20.

The tilting assembly 10 has a seat 11, a tilting base 12 and two lever sets 13. The seat 11 takes a form of an empty box and has multiple hooks 110 respectively formed on and protruding backwardly from two opposite sides of the seat 11, and adapted to be hung on a support arm. The tilting base 12 is pivotally mounted on the seat 11 to tilt with respect to the seat 11 and has a front wall 120 and two sidewalls 121. The front wall 120 has a positioning recess 122 and two stoppers 123. The positioning recess 122 is circular and is centrally formed in the front wall 120. The stoppers 123 are formed on the front wall 120 at positions beside the positioning recess 122. Each of the sidewalls 121 has a pivot hole 124, two arced holes 125 and two washers 126. The pivot hole 124 is centrally formed through the sidewall 121. The arced holes 125 are formed through the sidewall 121 and have a center at the pivot hole 124. Each of the washers 126 is mounted on a corresponding arced hole 125 and has a shape corresponding to that of the arced holes 125.

The lever sets 13 are respectively and pivotally mounted on the sidewalls 121 of the tilting base 12 to make the tilting seat 12 pivotable relative to the seat 11. Each lever set 13 has an inner lever 130, an outer lever 131, a pivot fastener 132 and two movable fasteners 133. The inner lever 130 and the outer lever 131 are respectively and pivotally mounted on two opposite sides of the sidewall 121. The pivot fastener 132 is mounted through a center portion of the outer lever 131, the pivot hole 124 of the corresponding sidewall 121, a center portion of the inner lever 132 and is connected to a corresponding one of the opposite sides of the seat 11. The two movable fasteners 133 are respectively mounted through two end portions of the inner lever 130, the two arced holes 125 of the corresponding sidewall 121, the two washers 126 and the two end portions of the outer lever 131, and are respectively connected to the corresponding side of the seat 11. Thus, the center portions of the inner lever 130 and the outer lever 131 of each of the lever sets 13 are pivotally mounted on the tilting base 12 and the seat 11 respectively, and the two end portions of the inner lever 130 and the outer lever 131 are respectively guided to move along the two arced holes 125. With the two lever sets 13, the tilting base 12 can be tilted up or down relative to the seat 11.

With reference to FIGS. 2 and 4, the rotating assembly 20 is mounted on the tilting base 12 of the tilting assembly 10 and has an inner ring 21, a rotary base 22, an outer ring 23 and a locking cap 24. The inner ring 21 is mounted in the positioning recess 122 of the tilting base 12. The rotary base 22 takes a form of a rectangular sheet body, is mounted on the inner ring 21 and the tilting base 12 and has a through hole 220 and two embosses 221. The through hole 220 is centrally formed through the rotary base 22 to align with the inner ring 21. The embosses 221 are formed on and protrude from a side of the rotary base 22 facing the tilting base 12. A circle on which the embosses 221 are located corresponds to that on which the stoppers 123 are located.

The outer ring 23 is mounted on the rotary base 22 to align with the through hole 220. The locking cap 24 is flat and cylindrical. One end of the locking cap 24 facing the outer ring 23 is mounted through the outer ring 23, the through hole 220 of the rotary base 22 and the inner ring 21 to abut against the positioning recess 133 of the tilting base 12, and is securely connected with the tilting base 12 with at least one fastener 25. The locking cap 24 has an annular flange 241 formed around and protruding from a perimeter of the locking cap 24 and having a diameter larger than that of the through hole 220. The annular flange 241 abuts against the outer ring 23 and an annular area on the rotary base 22 around the through hole 220 so that the rotary base 22 is rotatably held and mounted between the inner ring 23 and the outer ring 21.

With reference to FIGS. 2, 5, 6 and 9, in use, a mounting board on a rear of a display screen is securely mounted on the rotary base 22 of the tilting assembly 20 with fasteners. When the display screen is adjusted to tilt up or down in a first plane, the two movable fasteners 133 are first slightly loosened to be respectively movable along the arced holes 125. The display screen is then adjusted for an intended view angle, and the rotary base 22 is also moved to tilt up or tilt down accordingly. Meanwhile, the tilting base 12 is pivoted to tilt relative to the pivot fastener 132 of the seat 11, and the two end portions of each of the inner lever 130 and the outer lever 131 are respectively guide by and moved along the two arced holes 125. After the view angle adjustment of the display screen is completed, the two movable fasteners 133 are tightly fastened so that the tilting base 12 can be positioned to tilt up or down relative to the seat 11 with the intended view angle.

With reference to FIGS. 2, 7 and 9, when the display screen is adjusted to rotate on a second plane intersected with the first plane, the at least one fastener 25 is loosened first so that the display screen can be rotated clockwise or counter-clockwise on the second plane. Meanwhile, the rotation of the display screen drives the rotary base 22 to rotate relative to the locking cap 24. After the display screen is rotated to orient to an intended direction in the second plane, the at least one fastener 25 is tightened again so that the rotary base 22 can be positioned to orient to the intended direction. Additionally, with the abutments between the embosses 221 and the stoppers 123, the angle range that the display screen can rotate is limited.

As the adjustable display screen hanging device in accordance with the present invention possesses both the tilting assembly 10 and the rotating assembly 20, the display screen mounted on the adjustable display screen hanging device can be easily tilted on a first plane and/or rotated on a second plane intersected with the first plane to demonstrate the display screen along two different directions.

Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only. Changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. 

1. An adjustable display screen hanging device comprising: a tilting assembly having: a seat having two opposite sides; a tilting base pivotally mounted on the seat and having: a front wall; two sidewalls, each of the sidewalls having: a pivot hole formed through the sidewall; and two arced holes formed through the sidewall and having a center at the pivot hole; and two stoppers formed on the front wall; and two lever sets respectively and pivotally mounted on the sidewalls of the tilting base to make the tilting seat pivotable relative to the seat, each of the lever sets having: an inner lever and an outer lever respectively and pivotally mounted on the two sides of the sidewall, and respectively having a center portion and two end portions; a pivot fastener mounted through a center portion of the outer lever, the pivot hole of the sidewall, and the center portion of the inner lever and connected to a corresponding one of the sides of the seat; and two movable fasteners respectively mounted through the end portions of the inner lever, the two arced holes of the sidewall, and two end portions of the outer lever, and connected to the side of the seat; and a rotating assembly mounted on the tilting base of the tilting assembly, and having: an inner ring mounted on the front wall of the tilting base; a rotary base mounted on the inner ring and the tilting base and having: a through hole formed through the rotary base to align with the inner ring; a side facing the tilting base; and two embosses formed on and protruding from the side of the rotary base and located on a circle corresponding to that on which the stoppers are located; an outer ring mounted on the rotary base to align with the through hole; and a locking cap having an annular flange formed around and protruding from a perimeter of the locking cap and having a diameter larger than that of the through hole, wherein one end of the locking cap facing the outer ring is mounted through the outer ring, the through hole of the rotary base and the inner ring to abut against the tilting base, and is securely connected with the tilting base with at least one fastener.
 2. (canceled)
 3. (canceled)
 4. (canceled)
 5. The adjustable display screen hanging device as claimed in claim 1, wherein the tilting base further has a positioning recess being circular and formed in the front wall; the inner ring is mounted in the positioning recess of the tilting base; and one end of the locking cap facing the outer ring is mounted through the outer ring, the through hole of the rotary base and the inner ring to abut against the positioning recess of the tilting base.
 6. (canceled) 